Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Definitely not suitable for fine hair, no matter how little you use. It made my hair look like it needed to be washed. My friend who has thick curly hair loves this product so don't let me put you off if you have the right hair for this product.